Here’s something a bit different. This photo of the sun might not seem too impressive… until you realize it was taken at night - not by looking up but by looking down, straight through the entire Earth, using neutrinos rather than light. Amazing!

Here’s some background information from NASA’s Astronomy Picture of the Day webpage:
Neutrinos, along with things like electrons and quarks, are fundamental pieces of matter according to physicists’ Standard Model. But neutrinos are hard to detect. Readily produced in nuclear reactions and particle collisions, they can easily pass completely through planet Earth without once interacting with any other particle. Constructed in an unused mine in Japan, an ambitious large-scale experiment designed to detect and study neutrinos is known as Super-Kamiokande or “Super-K”. Only (!) 500 days’ worth of data was needed to produce this “neutrino image” of the Sun, using Super-K to detect the neutrinos from nuclear fusion in the solar interior. Centered on the Sun’s position, the picture covers a significant fraction of the sky (90×90 degrees in R.A. and Dec.). Brighter colors represent a larger flux of neutrinos.
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Thanks!
Steve